whats best oil do i use for my toyota corolla which i have a turbo on it now
10W30 or 10W40 and considering it's age it has probably never had synthetic so I would stick to conventional aka mineral oil. Brand does not matter. Any Name-Brand, mid-price. You don't need expensive oil but don't buy the dirt-cheap stuff either. Just as important, or even more so is a good filter. Ask the parts guy. Same thing, no need to spend $15 on a filter but please for the sake of your car no $4 filter
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